The muscle in my left calf is shrinking. I m a60 year old, active, female. I ve tried physical therapy and exercise and it doesn t help. It s not painful and, at this point, I don t feel like its much weaker. In October 2014, I had a hysterectomy and some lifting of bladder, etc. Something in there was attached to muscle or something around my lower spine. Could this have effected a nerve that caused my calf to start deteriorating? I m getting more upset all the time...